Inkjet Printing for Manufacturing Solid Oxide Fuel Cells

The thinning strategy is effective to develop high-performance solid oxide fuel cells (SOFCs) that can operate at low temperatures. The inkjet printing, which enables precise thin-film production in a simple and cost-effective manner, can have an important role in the implementation of the thin-film...

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Bibliographic Details
Published in:ACS energy letters 2020-05, Vol.5 (5), p.1586-1592
Main Authors: Han, Gwon Deok, Bae, Kiho, Kang, Eun Heui, Choi, Hyung Jong, Shim, Joon Hyung
Format: Article
Language:English
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Summary:The thinning strategy is effective to develop high-performance solid oxide fuel cells (SOFCs) that can operate at low temperatures. The inkjet printing, which enables precise thin-film production in a simple and cost-effective manner, can have an important role in the implementation of the thin-film SOFC technology. In this study, a method to manufacture the entire SOFC using a low-cost commercial inkjet printer is proposed. All the developed ceramic inks exhibited long-term dispersion stabilities and fluid properties suitable for inkjet printing. An inkjet-printed submicron-thick yttria-stabilized zirconia electrolyte maintained a high open-circuit voltage and robust uniform microstructure during electrochemical performance measurements. A fully inkjet-printed SOFC with a submicron-thick electrolyte achieved a high-power output of 730 mW cm–2 at 650 °C and significantly low degradation rate of 0.0002 V h–1 even in the durability test. These results indicate that inkjet printing could be successfully introduced to manufacture thin-film-based SOFC stacks.
ISSN:2380-8195
2380-8195
DOI:10.1021/acsenergylett.0c00721